[INFO] fetching crate undither 1.0.5...
[INFO] checking undither-1.0.5 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate undither 1.0.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate undither 1.0.5 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate undither 1.0.5
[INFO] finished tweaking crates.io crate undither 1.0.5
[INFO] tweaked toml for crates.io crate undither 1.0.5 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate undither 1.0.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytemuck v1.2.0
[INFO] [stderr]   Downloaded rgb v0.8.20
[INFO] [stderr]   Downloaded lodepng v3.0.0
[INFO] [stderr]   Downloaded imgref v1.6.1
[INFO] [stderr]   Downloaded vpsearch v2.0.1
[INFO] [stderr]   Downloaded loop9 v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7833a515704f62b94c3cf33a5277abc31908303ada94fe22e381ea16506b8170
[INFO] running `Command { std: "docker" "start" "-a" "7833a515704f62b94c3cf33a5277abc31908303ada94fe22e381ea16506b8170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7833a515704f62b94c3cf33a5277abc31908303ada94fe22e381ea16506b8170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7833a515704f62b94c3cf33a5277abc31908303ada94fe22e381ea16506b8170", kill_on_drop: false }`
[INFO] [stdout] 7833a515704f62b94c3cf33a5277abc31908303ada94fe22e381ea16506b8170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97ce83e2556b06c9745cbfd28521e41482dff9f9224bb089ed7871330cb68de8
[INFO] running `Command { std: "docker" "start" "-a" "97ce83e2556b06c9745cbfd28521e41482dff9f9224bb089ed7871330cb68de8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking imgref v1.6.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rgb v0.8.20
[INFO] [stderr]     Checking loop9 v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking vpsearch v2.0.1
[INFO] [stderr]     Checking undither v1.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.84s
[INFO] running `Command { std: "docker" "inspect" "97ce83e2556b06c9745cbfd28521e41482dff9f9224bb089ed7871330cb68de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ce83e2556b06c9745cbfd28521e41482dff9f9224bb089ed7871330cb68de8", kill_on_drop: false }`
[INFO] [stdout] 97ce83e2556b06c9745cbfd28521e41482dff9f9224bb089ed7871330cb68de8